Perceptron Struct Reference

Perceptron kernel . More...

#include <kernel.h>

Inheritance diagram for Perceptron:

[legend]Collaboration diagram for Perceptron:

[legend]List of all members.

Public Member Functions
	Perceptron ()
	Perceptron (std::istream &is)
virtual const id_t &	id () const
virtual Perceptron *	create () const
	Create a new object using the default constructor.
virtual Perceptron *	clone () const
	Create a new object by replicating itself.
virtual REAL	operator() (const Input &a, const Input &b) const
	The inner-product of two input vectors.
virtual void	set_data (const pDataSet &pd)
	Store a dataset in order to compute the kernel matrix.
virtual REAL	matrix (UINT i, UINT j) const
	The inner-product of two stored inputs with index i and j.
virtual void	set_params (SVM_detail *) const
Protected Attributes
std::vector< REAL >	x_norm2
	cached inner-product of data input

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Detailed Description

Perceptron kernel .

Definition at line 121 of file kernel.h.

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Constructor & Destructor Documentation

Perceptron (   )  [inline]

Definition at line 126 of file kernel.h.

Perceptron (  std::istream &  is  )  [inline, explicit]

Definition at line 127 of file kernel.h.

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Member Function Documentation

virtual Perceptron* clone (   )  const [inline, virtual]

Create a new object by replicating itself. Returns: A pointer to the new copy. The code for a derived class Derived is always return new Derived(*this); Though seemingly redundant, it helps to copy an object without knowing the real type of the object. See also: C++ FAQ Lite 20.6 Implements Kernel. Reimplemented in RBF. Definition at line 131 of file kernel.h. References Perceptron::Perceptron().

virtual Perceptron* create (   )  const [inline, virtual]

Create a new object using the default constructor. The code for a derived class Derived is always return new Derived(); Implements Kernel. Reimplemented in RBF. Definition at line 130 of file kernel.h. References Perceptron::Perceptron().

virtual const id_t& id (   )  const [virtual]

Returns: Class ID string (class name) Implements Object. Reimplemented in RBF.

virtual REAL matrix (  UINT  i, UINT  j )  const [inline, virtual]

The inner-product of two stored inputs with index i and j. Reimplemented from Kernel. Reimplemented in RBF. Definition at line 144 of file kernel.h. References DOTPROD, and LearnModel::ptd.

virtual REAL operator() (  const Input &  a, const Input &  b )  const [inline, virtual]

The inner-product of two input vectors. Implements Kernel. Reimplemented in RBF. Definition at line 133 of file kernel.h. References lemga::kernel::norm_2().

virtual void set_data (  const pDataSet &  pd  )  [inline, virtual]

Store a dataset in order to compute the kernel matrix. Reimplemented from Kernel. Definition at line 137 of file kernel.h. References DOTPROD, and LearnModel::ptd.

void set_params (  SVM_detail *   )  const [virtual]

In order to keep the SVM interface simple and avoid member functions specific to kernels (e.g., set_gamma()), we use Kernel to pass kernel parameters to SVM_detail. Implements Kernel. Reimplemented in RBF. Definition at line 173 of file svm.cpp.

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Member Data Documentation

std::vector<REAL> x_norm2 [protected]

cached inner-product of data input Definition at line 123 of file kernel.h.

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The documentation for this struct was generated from the following files:

• kernel.h
• svm.cpp

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